The icon isn't too bad, but could use some polish, especially with the spikes, and maybe the eyes somewhat. The shading also doesn't look right to me. I get your trying to do Sonic 3 like shading, but it just looks strange.

@Sketch Yeah... Thanks for criticism. I am pretty bad at shading or in minor details.22th April Update
I am back and now I can focus little bit more on my projects.
I didn't make anything big for my Main Project but I returned to my older projects like that one to Doom.
--Main Project:
There you can see just UWWT ( Under Water Wave Texture ) Not big deal.--Projects that aren't related to SRB2 or They WON't be released.*Can't be Released:
-Little bit Changed MotdSpork's Hyper.lua*Not Related to SRB2
-Doom
-Meaby my future.... who knows ?
That's all I don't want make this post Huge. So you can check full album of Screens.... But mostly its Doom.Full Album: http://imgur.com/a/dW6nHSorry MothSpork for use of your code, NO I MEAN LUA without asking.

The HUD is too inconsistent, though. The letters look too different from each other, and the letters in 'rings' are bigger than in 'score' and 'time' and are too spaced out from one another. It doesn't look good at all. Might want to change that.

Update of this day (10.8.2017):
After long time I am again working on that demo....
I had technical difficulties with music. And still I have...
Then let's go to showcase what I done after Two weeks or so?!
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1# Then, I created custom hud for this map pack. This will to lot people remind adventure hud but in classic style.
Icons for default trio will be CD inspired. Maybe I will support many of custom characters in future.

Spoiler:

2# I redraw/redone many areas of FCZ2, reason for that was it look so much similar to GFZ1, and now it just feel as GFZ1.
AND FINNALY I GET IN MANY AREAS RIG OF FLYING GRASS.

I am still waiting on sonic mania, so I can do ultimate Saturn models.

And after I will be done with main trio, objects and enemies. I'd like to after that to do other characters that aren't in main trio.
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Then, where to begin with I done some overhaul to few textures and sprites like grass and rock texture, peelout animation etc.

I added a lot of maps, still WIP, but I will showoff something(These were shown on discord).

MATCH MAP - QUARRY MAPM2:
It is very miniaturic arena, but for 1v1 it can be fun.

MATCH/COOP MAP - DARK GREEN VALLEY/CAVE MAPM1 and MAP03:
This map have two version, one for match and one for boss fight.
Yes, it is again small, but like 12 times bigger than QUARRY
And I removed MAP02 Boss, because that joke ruined everybody's experience.

SPECIAL STAGES - functions as old special stages from DEMO - 2.0 Era
, but without ring counter and you have to race to go instead.

10.3.2018
(Note: If you seen everything I post on SRB2 Discord Community/Official one, then it is waste of time checking this)
Then, first update post in year.

SRB2PP:

Let's start with most noticeable change totaly revamp FCZ1
(Yes, it is little bit longer, but it have more gameplay and visual value than last time)

Spoiler:

Next thing I want show to you is changes to skyboxes..., like in previous image eh....
FCZ2 have totaly overhauled textures from sky to water itself and water in in-game areas is completely new to match sky for "reflection".

Spoiler:

FCZ3 got new blue-ish night-ish sky for storm-like feeling.

Spoiler:

And I started to post lot about new zone at Discord, then there are few screens

Spoiler:

And theeeeeeeeee, OH WAIT DON'T VIEW IT

Spoiler:

Yes, I am preparing another zone jeezzz....

Also I done lot of minor changes,
like new in-game object sprites yaaay(springs, starpost, monitors, light shaft and normal rings)
with minor changes to pallete, but there are like really minor.

My latest gifs I posted on SRB2 Discord. (not 100% true) -- (Also skybox is WIP and btw I am using old assets from previous versions to create this skybox.)
I said I won't post anything at previous post, but I done this redesign and I needed to show it. Then I won't post anythin' until that update now :P